Jarring-machine



C. F. BUENTE. 'JARRING MACHINE.

APPLICATION FILED SEPT. 10, 1919. 1,373, 948. Patented Apr. 5, 1921.

3 SHEETS-SHEET I.

C. F. BUENTE. JARRING. MACHINE. APPLICATIONIILED SEPT. 10. I919.

Patented Apr. 5, 19211.

3 SHEE]SSHEET 2.

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,JARRING MACHINE.

. APPLICATION FILED SEPT. 10, 1919. 1,373,9%8

l W a m a W m w 7 M m CHARLES F. BUENTE, 0F AVALQN, PENNSYLVANIA.

A nlication filed September 19 191:).

To (ZZZ whom it may concern Be i' Known that 1, CHARLES F. BUENTE, acitizen or the United States, residing at Avalon. Allegheny county,?ennsylvania, have invented a new and useful improvement inJarring-lliachines, of which the following is a full, clear, and :;actdescription, reference being had to the accompanying drawings, formingpart of this specification.

The present invention relates to an improved jarring machine designedparticularly for use in molding concrete articles.

The principal object of the invention is to A apparatus for formingarticles of the above character in an economical and raoid manner and atthe same time form an article by continually feeding the concrete in othe mold in superimposed layers, while sJj-ecting the mold to jarring,to form a solid article tree of spaces between the perthe concrete.

tner object of the present invention 0 g o ide a single means forrotating gting the mold. which means is etfor causing the mold to withsubstantially no rotary movement at the time ot impact.

Another object of the present invention is to provide a mold jarringapparatus which will compact the concrete uniformly throughout theentire mass thereof, so that an article is not produced having the outersurface thereof more compact than the remainder.

A still further object or" the present invention is to provide anapparatus for rapidly carrying out the process and by means of which themold or molds are continuonsly rotated in front of a feeding de-.

vice and simultaneously jarred to settle the concrete in the mold.

The foregoing and other objects, together with their attendantadvantages, will be apparent as the invention becomes better understoodby reference to the accompanyspecification and drawings forming a partthereof. it being premised that changes may be made in the variousdetails and the manner of operation within the scope of the appendedclaims without departing from the spirit of the invention.

Figure 1 is a plan view illustrating diagrammatically one form ofapparatus for carrying out my invention.

2 is a horizontal sectional view on the line HII or" Fig. 3 showing oneform of L. 4". w Specincatmn in. Letters Patent. sfaliel tigell A lin,5, 13 21.

Serial No. 322,798.

apparatus for arring the mold and rotating it during the fillingthereof.

F 1g. 3 a sectional view on the line of F 2 with the mold shown in inelevated position.

1g. a is a side elevation of one of the lifting and rotating members. T1g. 5 is detail sectional view on the line i -V of Fig. l.

Fig. 6 is a side elevation, partiallv broke away. on the line VIVI ofFig. 5, and

Fig. 7 is a side elevation of the clutch mechanism for connecting thejarring; mechanism with the main driving shaft. 7

ihe compacting of the concrete takes place at the timeoi impact of thefalling mold. In actual practice I have found that it the mold isrotating at the instant of impact, the outer portions of the concrete inthernold will be compacted more, due tothe action of centrifugal force.By the apparatus disclosed in the present application I am enabler toeliminate rotationot the mold the instant of impact, with the result tlthe concrete is uniformly compacted throughout the mold. i

Referring more particularly to the draw- I have illustrated rotatabletables 2 lpivi -g suppo ted thereon suitable molds .ihes-e molds arepreferably arranged to be rotated with respect to a concrete teedinp'trough 4 or any other suitable device which may be shifted from one moldto another successively as the moles are filled. The tables 2 arepreferably rotated and iarred as hereinafter described by means of amain driving shaft 5 having beveled 'ear wheels 6 thereon adapted tomesh with beveled 7 n the countcrshafts 8 of the (litterent tables.

In Figs. 2 to 7 l have illustrated more in detail one of the iarrinemachines. towith the operating; mechanism theretor. This machinepreferably comprises a case member 9 supported on suitable foundation.The base member 9 is provided with central opening 10 for the receptionot a hollow shaft- 11. rotatably mounted on the upper end of which isthe supporting table 2 for the mold 3. These molds 3 may be of anysuitable type, but for molding pipe I prefer to use molds and cores suchas shown in my co-pending applications. Serial No. 19d .389, filed@ctober 2, 1917, and Serial. No. 194,390, filed October 2, 1917. respectively.

The table 2 is provided with a main casting 12 having an annular rib 13and radial ribs let connecting the annular rib to a boss 15 rotatablymounted on the upper end of the hollow shaft 11. Secured to the top ofthe main casting 12 are a plurality of I- beams 16 which support the topof the table on which the mold or molds are directly supported.

Rotatably mounted in the bearings 18, which are preferably formedintegrally with the base member 9, are three radially disposed shafts 19each having on one end thereof a bevel gear 20 meshing with a bevel gear21 rotatably mounted on the lower end of the hollow shaft 11. One of theshafts 19 is preferably connected by means of a loose clutch 22 with oneof the counter-shafts 8 through the medium of a fixed clutch member 22connected to said counter-shaft, the arrangement being such that all ofthe shafts 19 will be rotated in timed relation with the countershaft.Connected to each of the radial shafts 19, and between the sets ofbearings 18 is a table actuating member 23. The

table actuating members on each of the' shafts are timed with relationto each other to simultaneously engage the table and ele- V veto itclear of an annular scat located beneath the annular flange iii of thetable. The actuating members are also arranged to rotate the tableduring the elevation thereof, and then to suddenly release the table sothat it will fall by gravity onto the seat 24;, the impact against theseat 2% serving to jar the mold and compact the corn crete. Theactuating members do not rotate the support during its falling movement,but instead permit it to cease rotating and to drop against its seatwithout rotary motion at the time of impact.

The table actuating members 23 preferably each comprise a pair of plates25 held in spaced relation by the spacing and connecting bolts or rivets26. Between the plates 25 is a second pair of plates 27 which are heldin properly spaced position by spacing or filling blocks 28 suitablysecured there-be tween. The plates 27 carry a series of trans verseshafts 29 each supporting a table engaging, rotating and elevatingroller .30.

' The periphery of each of the plates 27 is so formed that cam surfaces31 are provided leading to the rollers 30, so that upon rotation of theradial shafts 19 the plates 25 will drive the intermediate plates 27,and

mechanism carried thereby through the me dium of the pins 32 engagingthe extremities of the slots 33 in the plates 27 and thereby rotate andelevate the molds.

In the normal operation of the machine the table actuating members arerotated in the direction of the arrow A in Fig. 4 so that when the tableis engaged by one of the cam surfaces 31 it will be rotated and raiseduntil it is engaged by one of the rollers 30. Since the rollers 30 arefree to rotate the mold will no longer be rotated by the table actuatingmembers, but will be allowed to come to rest due to the friction of itsrotary supporting bearing. As soon as the actuatiug members are turnedfar enough to move the table engaging rollers beyond their dead centerpositions vertically above the axes of the shafts 19, the rollers 30 andtheir carrying plates 27 will suddenly move ahead under, the downwardthrust of gravity of the table against. the rollers 30. The lost motionbetween the plates 27 and the plates 25 permitted by the pin 32 and slot373, permits the roller carrying plates 27 to turn ahead freely andallow the table to suddenly drop against the seat, the impact of thetable against the seat, serving to jarthe mold to compact the concrete.

During thetime between the riding of the table onto the rollers 30 andthe impact of force on the table, and during this time the table isallowed to cease rotation, so that it is rotationally stationary at thetime of the jarring impact. The table is rotated coinparatively slowlyand its momentum is absorbed by the friction of the parts before thecompletion of its falling'movement.

The shafts 19 and plates 25, which are continuously rotating, then takeup the lost motion of the pin and slot connection and bring thenext' setof cam surfaces 31 and rollers 30 into engagement with the tables,whereupon. the operation of raising and rotating and then dropping thetable will be repeated.

After the mold or molds supported on the table have been filled andjarred for a sulficiont length of. timeto properly compact the concrete,the table 2 is elevated and the clutch is: thrown to disconnect themachine fromv the countersha-ft 8.

The elevating mechanism comprises a turn-table having a lower member 36,which is secured to the upper end of a spindle 3T slidably mountedwithin the hollow shaft 11. This turn-table member 36 is provided with aball racehaving balls 38 therein which are arranged to be engaged by aseating portion on the upper turn-table member 39 secured to the bottomplate 17 of the table 2; This spindle 37 is supported on a lever 40'pivoted at all to a suitable bracket mounted on the foundation of thestructure One end of this lever 40 is engaged by. an elevating screw 42,which, when moved downwardly, will elevate the lower turn-table member36 into engagement with the upper turn-table member 39, and raise thetable 2 clear off its seat 24. This raising of the table 2 will permitit to be freely rotated by hand about its-axis, to enable-the workmen toreadily move the table to bring the clamping devices of the molds at thedesired point for releasing.

Pivotally connected to a bracket 4L3 on the frame of the machine is aclutch shifting member ll, one end of which is connected to the movableclutch member 22, while the other end thereof is connected by means of alink 45 with the end of the lever i0 opp0- site the actuating screw 42.\When the screw 42 is operated to elevate the table clear of itssupport, the clutch member 22 will be shifted longitudinally along theshaft 19 and disconnect it from the fixed clutch member 22 on thecountershaft 8, and thereby stop the table actuating mechanism.

In carrying out my process the concrete is fed to the mold or moldssupported on the table while the table is rotated and jarred and the fed is continued until the proper amount of concrete has been fed to themold or molds. After the proper amount has been fed to the mold ormolds, this particular table may be jarred for a predetermined length oftime, or the j arring may be stopped and the table raised as beforedescribed. The length of jarring after the feed of the concrete has beenstopped being dependent upon the article or articles which are beingformed. The molds that have just been filled and jarred are thenpermitted to remain on the tables for a predetermined length of time andare then removed from the molds.

The advantages of my invention result from the provision of method andapparatus for carrying out the method whereby the concrete is settledduring the pouring thereof, so that each layer of concrete is settled asit is poured. Further advantages arise from the provision of the methodand means for pouring the concrete in superimposed layers andcontinuously jarring and rotating the molds during the pouring, so thatsuccessive portions of each layer are settled before the next layer ispoured.

Further advantages of my invention reside from the provision of ajarring machine which is simultaneously rotated and raised, but in whichthe rotation of the table is arrested at the time of the arring impactwhich compacts the concrete.

While I have illustrated and described the preferred embodiment of myinvention, it is to be understood that the invention is not limited toits illustrated embodiment, but may be embodied in other structureswithin the scope of the following claims.

I claim:

1. jarring machine, comprising a mold support, and means forsuccessively simultaneously rotating and elevating the support, andpermitting the support to cease rotation, said means permitting thesupport to fall when it has ceased rotation to produce a sudden impactthereof, substantially as described.

2. A jarring machine, comprising a rotary mold support and actuatingmeans for engaging the support to simultaneously rotate and el vate it,having lost motion so as to permit the support to fall, substantially asdescribed.

A jarring machine, comprising a mold support, means for rotating'andelevating said support, means for engaging said support in elevatedposition to check rotation thereof, and a connection between said meanspermitting the support to fall when the rotation thereof has beenchecked. sub stantially as described.

A jarring machine, comprising a retary mold support, means forintermittently engaging the support to simultaneously raise and rotatethe support, and means for engaging said support to permit droppingthereof without rotation, substantially as described.

5. A jarring machine, comprising a 1'0- tary mold support, and actuatingmeans for the mold support comprising a rotary member provided with acam face for simultaneonsly elevating and rotating the mold support andhaving a roller at the end of the cam for engaging the mold supportafter it is elevated by the cam so as to permit the mold support tocease rotation, substantially as described.

(5. A jarring machine, comprising a rotary mold support, and actuatingmeans for the mold support comprising an actuating member to engage thesupport to simultaneously rotate and elevate it, said actuating memberbeing arranged to permit the mold support to fall and becomerotationally stationary at the time of impac and means for driving theactuating means having a lost motion connection therewith, substantiallyas described.

7. A jarring machine, comprising a retary mold support and actuatingmeans therefor, comprising a continuously driven rotary member, asupport-engaging member connected therewith by a connection having lostmotion, said support engaging member having a cam for simultaneouslyelevating and rotating the mold support, and a roller at the end of thecam for permitting it to be suddenly moved ahead and allow the moldsupport to fall without rotation at the time of impact, substantially asdescribed.

8. A jarring machine, comprising a support, a vertical axis therefor, aplurality of radial shafts, gearing between the radial shafts and thevertical shaft for the support, means for rotating said shafts, andmeans on the radial shafts for rotating and elevating the support,substantially as described.

9. A jarring machine, comprising a rotary support, a vertical shafttherefor, a plurality of radial shafts geared to the vertical shaft,means on the radial shafts for elevating and rotating the support, a bedplate adapted to form supporting means for said support when not engagedby the rotating means, and means for drivingsaid shafts,

substantially as described.

10. A jarring machine, comprising a rotary support, a vertical shafttherefor, a plurality of radial shafts geared to the vertiea shaft,means on the radial shafts for elevating and rotating the support, a bedplate adapted to form supporting means for said support when not engagedby the rotating means, a driving shaft, and a clutch connection betweenthe driving shaft and one of the radial shafts, substantially asdescribed.

ll. i jarring machine, comprising a retary support, a vertical shafttherefor, driving means for said support arra ged to simultaneouslyrotate and elevate the support, a main driving shaft, a clutch forconnecting the main driving shaft to the sup port driving mechanism, andmeans for simultaneously disengaging said clutch and moving the supportout of engagement with the support actuating means, substantially asdescribed.

12. A jarring machine, comprising a rotary support, a base adapted toreceive said support, a vertical shaft for the support mounted in abearing on the base, a plurality of radial shafts geared to the verticalshaft, support driving and elevating means on the radial shafts. adriving shaft, a clutch connection between the driving shaft and one ofthe radial shafts, a support elevating device, and clutch actuatingmeans for actuating the clutch and simultaneously actuate the supportelevating means to move the support above the support raising androtating means, substantially as described.

13. A jarring machine, comprising a base. a hollow shaft rotatablymounted in the base, a support connected to said shaft and arranged tobe rotatedthereby, a plurality of radially disposed shafts rotatablymounted in bearings on the base, gearing connecting the vertical shaftto the radial shafts, support raising and rotating means on the radialshaft-s, means for'actuating said shafts, a support raising devicewithin the hollow shaft, and means for actuating said support raisingdevice to move the supiort above the support raising and rotatinglevies. substantially as described.

14;. A jarring machine, comprising; a rotary mold support, and means toengage the support to simultaneously rotate and elevate it, said meansbeing arranged to permit the engaging means to run ahead of the supportand permit it to fall by gravity to jar the support, substantially asdescribed.

15. A jarring machine for molds, comprisi a mold support. and means forpcriodically simultaneously rotating and elevating said support and thenholding the support in elevated position until rotation thereof hasceased, said means permitting the support to fall suddenly to compactthe material in the molds when the support has ceased rotation, wherebysaid molds are not subjected to centrifugal force duringfthe compactingof material therein, substantially as described. g

in testimony whereof I have hereunto set my hand. J

CHARLES F, BUENTE.

